Tow hours ( )the limit of this test A are B has been C will be D is 选什么啊,原因?

问题描述:

Tow hours ( )the limit of this test A are B has been C will be D is 选什么啊,原因?

选D
因时间、距离等复数名词做主语,谓语只能用单数,所以排除A.此句意为考试限时两小时,这是一种规定,用一般将来时,现在完成时不妥,规定常用一般现在时.